| 摘要 |
The present invention relates to an automatic/manual door opening and shutting method using an automatic/manual door opening and shutting system. The automatic/manual door opening and shutting system comprises: a first opening and shutting means; a first hydraulic maintaining and relieving means; a second opening and shutting means; a second hydraulic maintaining and relieving means; a control unit; and a manual opening and shutting means. The automatic/manual door opening and shutting method uses the automatic/manual door opening and shutting system, and comprises: a first shutting step of maintaining an entrance in a shut state and maintaining a hydraulic pressure; a second shutting step of maintaining a door in a shut state and maintaining a hydraulic pressure; and a hydraulic relieving step of relieving the hydraulic pressure. Specifically, the door is automatically opened and shut using a hydraulic cylinder; the hydraulic pressure in the hydraulic cylinder is relieved when the door is shut; and the shut door can be manually opened or shut again by the manual opening and shutting means which is connected to the hydraulic cylinder to manually operate the hydraulic cylinder. |
